Patents by Inventor Daiki Nakamura

Daiki Nakamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250119310
    Abstract: An event management system includes a first communication terminal, a second communication terminal, and an event management apparatus. The first communication terminal is located in a physical space and used for executing a predetermined event. The second communication terminal is used for executing the predetermined event via a virtual space. The event management apparatus manages information related to the predetermined event in a case where the predetermined event is executed using the first communication terminal and the second communication terminal. The event management apparatus includes first circuitry configured to generate an event participation notification after one communication terminal of the first communication terminal and the second communication terminal performs processing of participating in the predetermined event and transmit the generated event participation notification to the other communication terminal.
    Type: Application
    Filed: October 8, 2024
    Publication date: April 10, 2025
    Inventor: Daiki NAKAMURA
  • Patent number: 12272271
    Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.
    Type: Grant
    Filed: November 21, 2023
    Date of Patent: April 8, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shingo Eguchi, Taiki Nonaka, Daiki Nakamura, Nozomu Sugisawa, Kazuhiko Fujita, Shunpei Yamazaki
  • Publication number: 20250107319
    Abstract: A display device in which film separation is sufficiently inhibited is provided. The display device includes a first insulating layer and a second insulating layer, a first light-emitting device positioned over the first insulating layer, a second light-emitting device positioned over the second insulating layer, and a third insulating layer including a region covering part of a side surface of the first light-emitting device, a region covering part of the bottom surface of the first insulating layer, a region covering part of the bottom surface of the second insulating layer, and a region covering part of a side surface of the second light-emitting device. The first light-emitting device has a tandem structure and the second light-emitting device has a single structure.
    Type: Application
    Filed: December 15, 2022
    Publication date: March 27, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya AOYAMA, Hisao IKEDA, Daiki NAKAMURA
  • Publication number: 20250104621
    Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 27, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kouhei TOYOTAKA, Daiki NAKAMURA
  • Patent number: 12262623
    Abstract: A display device that can easily have high resolution is provided. A display device having both high display quality and high resolution is provided. A display device with high contrast is provided. A first EL film is deposited in contact with a top surface and a side surface of each of a first pixel electrode and a second pixel electrode each having a tapered shape. A first sacrificial film is formed to cover the first EL film. The first sacrificial film and the first EL film are etched to expose the second pixel electrode and form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer, and then, the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching. The first sacrificial layer is removed by wet etching.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: March 25, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Tomoya Aoyama, Kensuke Yoshizumi
  • Patent number: 12256597
    Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: March 18, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Daiki Nakamura, Ryo Hatsumi, Rai Sato, Shingo Eguchi, Koji Kusunoki
  • Patent number: 12247560
    Abstract: A pump unit and a pump capable of detecting characteristics of a conveyance article and a method for detecting the characteristics of the conveyance article. A pump unit includes an outer cylinder; an inner cylinder disposed on an inner circumference side of the outer cylinder; and a pressure supply chamber provided between the inner cylinder and the outer cylinder, the pump unit being configured to convey a conveyance article in the inner cylinder by supplying a pressurizing medium into the pressure supply chamber and thereby causing the inner cylinder to expand inwardly in a radial direction, in which the pump unit further includes a conveyance article information acquiring device configured to acquire information on the conveyance article in the inner cylinder at a time when the inner cylinder is expanded.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 11, 2025
    Assignee: CHUO UNIVERSITY
    Inventors: Taro Nakamura, Yasuyuki Yamada, Kota Wakamatsu, Daiki Hagiwara, Haruka Adachi, Daisuke Matsui
  • Publication number: 20250081748
    Abstract: A highly reliable display device is provided.
    Type: Application
    Filed: December 12, 2022
    Publication date: March 6, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya AOYAMA, Hisao IKEDA, Daiki NAKAMURA
  • Publication number: 20250072212
    Abstract: An electronic device with low power consumption is provided. The electronic device includes a first display device and a second display device. The first display device includes a first display portion, and the second display device includes a second display portion. A plurality of first pixels are arranged in the first display portion, and a plurality of second pixels are arranged in the second display portion. The first display device overlaps with the second display device. The second display portion is provided to surround at least part of the first display portion in a plan view. The area occupied by each of the first pixels is smaller than the area occupied by each of the second pixels.
    Type: Application
    Filed: December 15, 2022
    Publication date: February 27, 2025
    Inventors: Daiki NAKAMURA, Hisao IKEDA, Ryo HATSUMI, Takeya HIROSE, Yosuke TSUKAMOTO
  • Publication number: 20250072254
    Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.
    Type: Application
    Filed: November 15, 2024
    Publication date: February 27, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki NAKAMURA, Shingo EGUCHI, Tomoya AOYAMA, Nozomu SUGISAWA, Junya MARUYAMA, Kazuhiko FUJITA, Masataka SATO, Susumu KAWASHIMA
  • Publication number: 20250072260
    Abstract: To provide a display apparatus with high display quality. To provide a display apparatus which includes first and second light-emitting devices and in which the first and second light-emitting devices include a common electrode with a light-transmitting property, the first light-emitting device includes a first electrode, a first EL layer, and a first auxiliary electrode with a light-transmitting property, the second light-emitting device includes a second electrode, a second EL layer, and a second auxiliary electrode with a light-transmitting property, the first EL layer is between the first electrode and the common electrode, the second EL layer is between the second electrode and the common electrode, the first auxiliary electrode is between the first EL layer and the common electrode, the second auxiliary electrode is between the second EL layer and the common electrode, and the first auxiliary electrode has a larger thickness than the second auxiliary electrode.
    Type: Application
    Filed: August 20, 2024
    Publication date: February 27, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Naoaki HASHIMOTO, Daiki NAKAMURA
  • Patent number: 12229358
    Abstract: A touch panel capable of performing display and sensing along a curved surface or a touch panel that maintains high detection sensitivity even when it is curved along a curved surface is provided. A flexible display panel is placed along a curved portion included in a surface of a support. A first film layer is attached along a surface of the display panel by a bonding layer. Second to n-th film layers (n is an integer of 2 or more) are sequentially attached along a surface of the first film layer by bonding layers. A flexible touch sensor is attached along a surface of the n-th film layer by a bonding layer.
    Type: Grant
    Filed: April 29, 2024
    Date of Patent: February 18, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Masataka Ikeda
  • Publication number: 20250052902
    Abstract: A measurement device includes: a light emitting unit configured to emit pulsed light; an imaging sensor configured to output a signal value corresponding to an exposure amount for each pixel; a timing control unit configured to expose the pixel of the imaging sensor to reflected light in an exposure period that is set according to a measurement target region and has an exposure width shorter than a pulse width of the pulsed light; and a calculation unit configured to calculate an arrival time of the reflected light based on signal values corresponding to three or more consecutive exposure periods that can include the pulse width.
    Type: Application
    Filed: November 24, 2022
    Publication date: February 13, 2025
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayuki TAKAHASHI, Yasuo NAKAMURA, Kenichi HOSHI, Daiki KATO
  • Publication number: 20250056973
    Abstract: A method for fabricating a highly reliable display device is provided. A first conductive film is formed; a first film containing a first light-emitting substance is formed over the first conductive film; a first mask film is formed over the first film; the first conductive film, the first film, and the first mask film are processed such that their side surfaces are substantially aligned with each other to form a first conductive layer, a first layer, and a first mask layer; a second conductive film is formed over the first mask layer and a first sidewall insulating layer; a second film containing a second light-emitting substance is formed over the second conductive film; a second mask film is formed over the second film; and the second conductive film, the second film, and the second mask film are processed such that their side surfaces are substantially aligned with each other to form a second conductive layer, a second layer, and a second mask layer and to expose the top surface of the first mask layer.
    Type: Application
    Filed: December 2, 2022
    Publication date: February 13, 2025
    Inventors: Daiki NAKAMURA, Hisao IKEDA, Tomoya AOYAMA, Nozomu SUGISAWA, Yuichi YANAGISAWA
  • Publication number: 20250048909
    Abstract: A display apparatus with high display quality is provided. In the display apparatus, a dummy pixel portion is a region that does not contribute to display. The dummy pixel portion is positioned adjacent to the outside of a pixel portion in a plan view. The pixel portion includes a first insulating layer, a first pixel electrode and a second pixel electrode over the first insulating layer, a first layer over the first pixel electrode, a second layer over the second pixel electrode, and a common electrode over the first layer and the second layer. The dummy pixel portion includes the first insulating layer, a first conductive layer and a second conductive layer over the first insulating layer, a third layer over the first conductive layer, a fourth layer over the second conductive layer, and the common electrode over the third layer and the fourth layer. The first insulating layer includes a first groove and a second groove.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 6, 2025
    Inventors: Yuichi YANAGISAWA, Daiki NAKAMURA, Hiromi SAWAI, Ryota HODO
  • Patent number: 12219867
    Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: February 4, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Kazuhiko Fujita
  • Publication number: 20250035946
    Abstract: A thin optical device having high light utilization efficiency and a small electronic device including the optical device are provided. The thin optical device includes a reflective polarizing plate, a lens, and an optical rotator. The optical device can be a thin optical device that is small in overall length by rotation of the polarization plane of linearly polarized light with the optical rotator and utilization of properties of transmitting and reflecting light of the reflective polarizing plate. Furthermore, the optical device does not use a half mirror; thus, the optical device has a property of high light utilization efficiency, and the power consumption of the electronic device can be reduced and the reliability of the electronic device can be improved.
    Type: Application
    Filed: December 15, 2022
    Publication date: January 30, 2025
    Inventors: Ryo HATSUMI, Hisao IKEDA, Daiki NAKAMURA, Takeya HIROSE, Yosuke TSUKAMOTO
  • Publication number: 20250024722
    Abstract: A method for manufacturing a highly reliable display device is provided.
    Type: Application
    Filed: November 17, 2022
    Publication date: January 16, 2025
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki NAKAMURA, Hisao IKEDA, Tomoya AOYAMA, Nozomu SUGISAWA, Yuichi YANAGISAWA
  • Publication number: 20250024737
    Abstract: An electronic device with low power consumption is provided. The electronic device includes a first pixel portion and a second pixel portion. A plurality of first pixels are arranged in the first pixel portion. The second pixel portion includes a first region where a plurality of second pixels are arranged and a second region where a plurality of third pixels are arranged. The second region is provided to surround the first region. The first pixel includes a first light-emitting element, the second pixel includes a light-receiving element, and the third pixel includes a second light-emitting element. The area occupied by one of the first pixels is smaller than the area occupied by one of the third pixels.
    Type: Application
    Filed: December 9, 2022
    Publication date: January 16, 2025
    Inventors: Ryo HATSUMI, Hisao IKEDA, Daiki NAKAMURA, Takeya HIROSE, Yosuke TSUKAMOTO
  • Patent number: 12200998
    Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: January 14, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daiki Nakamura, Shingo Eguchi, Tomoya Aoyama, Nozomu Sugisawa, Junya Maruyama, Kazuhiko Fujita, Masataka Sato, Susumu Kawashima